CN204594903U - A kind of novel gamma-ray testing apparatus - Google Patents
A kind of novel gamma-ray testing apparatus Download PDFInfo
- Publication number
- CN204594903U CN204594903U CN201520309658.0U CN201520309658U CN204594903U CN 204594903 U CN204594903 U CN 204594903U CN 201520309658 U CN201520309658 U CN 201520309658U CN 204594903 U CN204594903 U CN 204594903U
- Authority
- CN
- China
- Prior art keywords
- shielding ring
- stereotype
- gamma
- testing apparatus
- ray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The utility model relates to a kind of novel gamma-ray testing apparatus, comprises gamma-ray detection apparatus, defeated source capsule, focus adjustment pipe, directed photohead and stereotype shielding ring; One end of described defeated source capsule is connected with gamma-ray detection apparatus, and the other end of described defeated source capsule is connected with directed photohead by focus adjustment pipe; Described focus adjustment pipe is screwed onto on stereotype shielding ring, described directed photohead be positioned at stereotype shielding ring inside so that irradiate pipe under test wait detect a flaw position; Described stereotype shielding ring is fixedly sleeved outside in pipe under test, is provided with the first plumbous rubber treating flaw detection both sides, position for being wrapped in pipe under test between described stereotype shielding ring and pipe under test; The second plumbous rubber is all enclosed with outside described defeated source capsule and outside focus adjustment pipe.The utility model effectively can reduce radiation scope, and security performance is higher, and uses more convenient, and the radiation level outside 2m scope especially can be made substantially to be in safe range.
Description
Technical field
The utility model relates to a kind of Dynamic Non-Destruction Measurement, particularly a kind of gamma-ray testing apparatus.
Background technology
Non-Destructive Testing is the requisite effective tool of industrial development, and reflect a national Industry Development Level to a certain extent, its importance gains public acceptance.Ray detection act as the one in lossless detection method, and its conventional method has X-ray procedure, gamma-ray examination, high-energy ray inspection and neutron ray inspection.For the inspection of conventional industrial x-ray, generally use X-ray procedure and gamma-ray examination.
For petrochemical unit, because the harsh operation operating mode of the burn into High Temperature High Pressure etc. of actuating medium, medium are to the erosive wear of equipment pipe, equipment wall thickness reduction, inherent vice expansion etc. is inevitably caused to cause pipe perforation or break.Once there is this type of accident, usually need that temporary parking is implemented to device and carry out rush repair, this expands further to Accident prevention, ensure that the security of operation of petrochemical equipment is most important.But stop in emergency and can cause larger loss to the economic benefit of production unit, thus after rush repair in the urgent need to completing the ray detection of butt welded seam with the fastest speed so that recovery device drives to produce as early as possible.But the pipeline of petrochemical unit gathers, narrow space, usually cannot implement X ray detect and radioactive source must be used to carry out transillumination, and ray detection can cause radiation pollution to surrounding environment, usual γ source radiation protection radius reaches more than 30m, mean that the non-ray operating personnel in this protective range must withdraw, this for daytime and process units normally unpractical, therefore must by every means radiation protection scope be reduced as far as possible, when not changing existing generally general gamma-ray detection apparatus structure, the gamma-rays that development radiation scope is less detects exposure device and has important practical significance undoubtedly.
The patent No. is the utility model patent " a kind of pipeline gamma ray detection device special of close-range protection " of 201020679325.4, disclose this pick-up unit and comprise source machine, gamma ray projector, paster device and plumbous rubber, wherein source machine comprises gamma ray projector storeroom, locking device, gamma ray projector passage, pull bar, inner exposure window composition, and gamma ray projector is arranged on pull bar; Pull bar can be locked at diverse location by locking device; Paster device is profile is one section of circular arc stainless steel casing, liner rolled lead, and centre has rectangular window that can be movable; Plumbous rubber is used for being wrapped in the outside of pipeline and source machine, prevents the leakage of ray.Can place the film needing exposure during use outside paster device, the plumbous rubber placed ray and reveal can be wrapped up in the outside of film.Although above-mentioned patent possesses outside 3 ~ 5 meters of scopes, the radiation dose of public reception all specifies the effect of (2.5uSv/h) lower than GBZ132-2008, and what safe range can not be controlled is less, still can there is certain inconvenience for some work.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide one effectively can reduce radiation scope, and security performance is higher, uses more convenient novel gamma-ray testing apparatus.
For achieving the above object, the utility model adopts following technical scheme:
A kind of novel gamma-ray testing apparatus, comprises gamma-ray detection apparatus, defeated source capsule, focus adjustment pipe, directed photohead and stereotype shielding ring; One end of described defeated source capsule is connected with gamma-ray detection apparatus, and the other end of described defeated source capsule is connected with directed photohead by focus adjustment pipe; Described focus adjustment pipe is screwed onto on stereotype shielding ring, described directed photohead be positioned at stereotype shielding ring inside so that irradiate pipe under test wait detect a flaw position; Described stereotype shielding ring is fixedly sleeved outside in pipe under test, is provided with the first plumbous rubber treating flaw detection both sides, position for being wrapped in pipe under test between described stereotype shielding ring and pipe under test; The second plumbous rubber is all enclosed with outside described defeated source capsule and outside focus adjustment pipe.
Preferably, described stereotype shielding ring is made up of the semicircle shielding ring that two are bolted to connection together, and the end of each semicircle shielding ring is equipped with web joint, each web joint is equipped with the bolt hole for overlapping connecting bolt.
Preferably, the quantity of the web joint of the end of each semicircle shielding ring is four.
Preferably, described focus adjustment pipe is screwed onto the center position in the outside of semicircle shielding ring.
Preferably, the outside of described stereotype shielding ring is arranged with the locking steel ring connected for strengthening two semicircle shielding rings.
Preferably, the quantity of described locking steel ring is 2 ~ 3.
Preferably, described stereotype shielding ring comprises skeleton and stereotype, and described skeleton is provided with reinforcement, and described stereotype is fixed on outside and the left and right sides of skeleton by steel bar.
Preferably, described skeleton is equal angle skeleton; The thickness of described stereotype is 6mm.
Preferably, the width of described stereotype shielding ring is 150 ~ 200mm, and thickness is 200mm.
Preferably, the width of described first plumbous rubber is 50mm, and thickness is 3 ~ 5mm.
The beneficial effects of the utility model are as follows:
This novel gamma-ray testing apparatus effectively can reduce radiation scope, and security performance is higher, and uses more convenient.It can make the radiation in whole testing process be in masked state, and the radiation level outside 2m scope more can be made substantially to be in safe range.Avoiding problems the interference that production unit is normally worked, adapt to the special requirement of petrochemical unit rush repair, do not need to wait until operation in evening, do not need to withdraw field personnel, there are obvious economic and social benefits.
Device of the present utility model is applicable to the butt-weld radiographic inspection on the boilers and pressure vessel pressure pipeline of carbon steel, alloy steel, stainless steel and other materials that diameter is less than 800mm, scanning thickness is less than 100mm and special equipment.Can work with other staff at the construction field (site) simultaneously, not need to clear out a gathering place and carry out ray detection, the engineering time can be arranged flexibly, the occasions the such as especially scope of operation such as engineering later stage, maintenance maintenance, old device non-stop production reformation is little, the duration is tight.When detecting operation in high-altitude, can avoid testing staff cover for hiding ray and repeatedly between high-altitude and ground up and down, and can to detect by day, saved manpower, ensure that safety.In petrochemical complex is produced, maintenance situation of stopping in emergency often has generation.The use of this device not only can make maintenance carry out in order but also can ensure testing progress.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the better embodiment of novel gamma-ray testing apparatus of the present utility model.
Fig. 2 is the sectional view of stereotype shielding ring in novel gamma-ray testing apparatus of the present utility model.
Fig. 3 is the structural drawing in novel gamma-ray testing apparatus of the present utility model outside stereotype shielding ring.
Reference numeral: 1, gamma-ray detection apparatus; 2, defeated source capsule; 3, focus adjustment pipe; 4, directed photohead; 5, stereotype shielding ring; 51, bolt; 52, web joint; 53, skeleton; 54, stereotype; 55, reinforcement; 56, steel bar; 6, pipe under test; 71, the first plumbous rubber; 72, the second plumbous rubber; 8, steel ring is locked.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to Fig. 1, Fig. 2 and Fig. 3, the utility model relates to a kind of novel gamma-ray testing apparatus, and its better embodiment comprises gamma-ray detection apparatus 1, defeated source capsule 2, focus adjustment pipe 3, directed photohead 4 and stereotype shielding ring 5; One end of defeated source capsule 2 is connected with gamma-ray detection apparatus 1, and the other end of defeated source capsule 2 is connected with directed photohead 4 by focus adjustment pipe 3; Focus adjustment pipe 3 is screwed onto on stereotype shielding ring 5, directed photohead 4 be positioned at stereotype shielding ring 5 inside so that irradiate pipe under test 6 wait detect a flaw position; Stereotype shielding ring 5 is fixedly sleeved outside in pipe under test 6, is provided with the first plumbous rubber 71 treating flaw detection both sides, position for being wrapped in pipe under test 6 between stereotype shielding ring 5 and pipe under test 6; The second plumbous rubber 72 is all enclosed with outside defeated source capsule 2 and outside focus adjustment pipe 3.By adjustable pipe 3 of focusing, the transillumination focal length of radioactive source can be regulated.Gamma-ray detection apparatus can be transported to directed photohead by defeated source capsule 2 radioactive source and carry out transillumination exposure.
This device can make radioactive source arrive exposure station by defeated source capsule 2, focus adjustment pipe 3 and directed photohead 4 successively to carry out directed beam transillumination, thus make ray according to certain radiation towards the radiation of specific direction, other oriented radial then can be directed photohead 4 and shield, and exposure station is here waits position of detecting a flaw.Be recovered to by radioactive source in gamma-ray detection apparatus 1 after completing exposure, the radiation that gamma-rays produces in whole testing process is in masked state, and outside 2m scope, its radiation level is in safe range substantially.This device adapts to the special requirement of petrochemical unit rush repair, do not need to wait until operation in evening, do not need to withdraw field personnel, relative to common gamma-rays operation radiation protection radius at more than 30m, significantly shorten radiation protection scope, avoid the interference that production unit is normally worked, there are obvious economic and social benefits.
Wherein, stereotype shielding ring 5 is made up of the semicircle shielding ring that two are fixed together by bolt 51, and the end of each semicircle shielding ring is equipped with web joint 52, each web joint is equipped with the bolt hole for overlapping connecting bolt 51.Certainly, these two semicircle shielding rings can also by remaining mode fixed Combination together.The end of each semicircle shielding ring can be fixedly linked by welding and web joint.Preferably, the quantity of the web joint 52 of the end of each semicircle shielding ring is four, and certainly, the quantity of web joint 52 also can be one or more.Focus adjustment pipe 3 is screwed onto the center position in the outside of semicircle shielding ring.Focus adjustment pipe 3 can regulate radioactive source transillumination focal length.
Preferably, the outside of stereotype shielding ring 5 is arranged with the locking steel ring 8 connected for strengthening two semicircle shielding rings.This locking steel ring 8 can make stereotype shielding ring 5 be socketed in more securely outside pipe under test 6.According to specific needs, the quantity of locking steel ring 8 can be one or more, and preferably, the quantity of locking steel ring 8 is 2 ~ 3.
Stereotype shielding ring 5 comprises skeleton 53 and stereotype 54, and skeleton 53 is provided with reinforcement 55, and stereotype 54 is fixed on outside and the left and right sides of skeleton 53 by steel bar 56.Skeleton 53 is equal angle skeleton; The thickness of stereotype 54 is 6mm.Wherein focus adjustment pipe 3 can be screwed onto on skeleton 53.Skeleton 53 can also be that other suitable firm materials processings form, and reinforcement 55 also can be steel bar simultaneously.Preferably, the thickness of stereotype 54 can be 6mm.
The width AB of stereotype shielding ring 5 can be 150 ~ 200mm, can certainly be other suitable sizes.The thickness A C of stereotype shielding ring 5 can be 200mm, or the size of other matters.The internal diameter of stereotype shielding ring 5 can be arranged to adapt with the external diameter of pipe under test 6.Preferably, the width of the first plumbous rubber 71 can be 50mm, and thickness can be 3 ~ 5mm.What the first plumbous rubber 71 was wrapped in pipe under test 6 treats that sealing function can be played in flaw detection both sides, position, thus effectively avoids gamma-rays to spill.Second plumbous rubber 72 is wrapped in the outside of defeated source capsule 2 and focus adjustment pipe 3 simultaneously, and its thickness also can be 3 ~ 5mm, can effectively prevent the gamma-rays in radioactive source folding and unfolding process from spilling.Wherein the length of defeated source capsule 2 is unsuitable long, to be advisable in 2m.
Concrete, the specific works process of this device is as follows:
First, suitable stereotype shielding ring can be selected according to the size of pipe under test, and treat that the first plumbous rubber is closely wrapped up in flaw detection both sides, position in pipe under test, then treat flaw detection location arrangements transillumination film at pipeline to be detected.Then directed photohead and focus adjustment pipe is connected, according to the position of the size adjustment focus adjustment pipe of transillumination focal length.Subsequently, in the outside of pipe under test, stereotype shielding ring is installed, what directed photohead aimed at pipe under test waits position of detecting a flaw, the distance that directed photohead departs from detected part center can be set as required, compress the first plumbous rubber and the bolt tightened on stereotype shielding ring, tighten locking steel ring simultaneously, and wrap up defeated source capsule and focus adjustment pipe with the second plumbous rubber, defeated source capsule is connected with focus adjustment pipe.Security protection distance 2m is finally set, radioactive source is transported to directed photohead from gamma-ray detection apparatus and exposes, radiation dose detecting instrument testing environment radiation dose can also be used simultaneously.When exposure is complete, radioactive source is recovered to gamma-ray detection apparatus.Certainly, said process can be repeated, to detect other detection position of pipe under test.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.
Claims (10)
1. a novel gamma-ray testing apparatus, is characterized in that: comprise gamma-ray detection apparatus, defeated source capsule, focus adjustment pipe, directed photohead and stereotype shielding ring; One end of described defeated source capsule is connected with gamma-ray detection apparatus, and the other end of described defeated source capsule is connected with directed photohead by focus adjustment pipe; Described focus adjustment pipe is screwed onto on stereotype shielding ring, described directed photohead be positioned at stereotype shielding ring inside so that irradiate pipe under test wait detect a flaw position; Described stereotype shielding ring is fixedly sleeved outside in pipe under test, is provided with the first plumbous rubber treating flaw detection both sides, position for being wrapped in pipe under test between described stereotype shielding ring and pipe under test; The second plumbous rubber is all enclosed with outside described defeated source capsule and outside focus adjustment pipe.
2. novel gamma-ray testing apparatus as claimed in claim 1, it is characterized in that: described stereotype shielding ring is made up of the semicircle shielding ring that two are bolted to connection together, the end of each semicircle shielding ring is equipped with web joint, each web joint is equipped with the bolt hole for overlapping connecting bolt.
3. novel gamma-ray testing apparatus as claimed in claim 2, is characterized in that: the quantity of the web joint of the end of each semicircle shielding ring is four.
4. novel gamma-ray testing apparatus as claimed in claim 2, is characterized in that: described focus adjustment pipe is screwed onto the center position in the outside of semicircle shielding ring.
5. the novel gamma-ray testing apparatus according to any one of claim 2 to 4, is characterized in that: the outside of described stereotype shielding ring is arranged with the locking steel ring connected for strengthening two semicircle shielding rings.
6. novel gamma-ray testing apparatus as claimed in claim 5, is characterized in that: the quantity of described locking steel ring is 2 ~ 3.
7. novel gamma-ray testing apparatus as claimed in claim 1, is characterized in that: described stereotype shielding ring comprises skeleton and stereotype, and described skeleton is provided with reinforcement, and described stereotype is fixed on outside and the left and right sides of skeleton by steel bar.
8. novel gamma-ray testing apparatus as claimed in claim 7, is characterized in that: described skeleton is equal angle skeleton; The thickness of described stereotype is 6mm.
9. novel gamma-ray testing apparatus as claimed in claim 1, is characterized in that: the width of described stereotype shielding ring is 150 ~ 200mm, and thickness is 200mm.
10. novel gamma-ray testing apparatus as claimed in claim 1, is characterized in that: the width of described first plumbous rubber is 50mm, and thickness is 3 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309658.0U CN204594903U (en) | 2015-05-13 | 2015-05-13 | A kind of novel gamma-ray testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309658.0U CN204594903U (en) | 2015-05-13 | 2015-05-13 | A kind of novel gamma-ray testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204594903U true CN204594903U (en) | 2015-08-26 |
Family
ID=53931048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520309658.0U Withdrawn - After Issue CN204594903U (en) | 2015-05-13 | 2015-05-13 | A kind of novel gamma-ray testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204594903U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833683A (en) * | 2015-05-13 | 2015-08-12 | 广东华泰检测科技有限公司 | Novel gamma ray detection device |
| CN105158281A (en) * | 2015-09-18 | 2015-12-16 | 宁夏共享集团股份有限公司 | Device and method for radio-graphically testing girth joint |
| CN106018892A (en) * | 2016-05-24 | 2016-10-12 | 国家电网公司 | Ultrahigh frequency test shielding device of GIS |
| CN106290407A (en) * | 2016-01-18 | 2017-01-04 | 无锡华光锅炉股份有限公司 | A kind of header flaw detection sleeve pipe structure |
-
2015
- 2015-05-13 CN CN201520309658.0U patent/CN204594903U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833683A (en) * | 2015-05-13 | 2015-08-12 | 广东华泰检测科技有限公司 | Novel gamma ray detection device |
| CN104833683B (en) * | 2015-05-13 | 2018-07-10 | 广东华泰检测科技有限公司 | Gamma ray detection device |
| CN105158281A (en) * | 2015-09-18 | 2015-12-16 | 宁夏共享集团股份有限公司 | Device and method for radio-graphically testing girth joint |
| CN106290407A (en) * | 2016-01-18 | 2017-01-04 | 无锡华光锅炉股份有限公司 | A kind of header flaw detection sleeve pipe structure |
| CN106290407B (en) * | 2016-01-18 | 2024-03-19 | 无锡华光环保能源集团股份有限公司 | Header pipe box structure of detecting a flaw |
| CN106018892A (en) * | 2016-05-24 | 2016-10-12 | 国家电网公司 | Ultrahigh frequency test shielding device of GIS |
| CN106018892B (en) * | 2016-05-24 | 2019-06-07 | 国家电网公司 | A kind of GIS gas-insulated switchgear superfrequency test screening arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204594903U (en) | A kind of novel gamma-ray testing apparatus | |
| CN102095739B (en) | Gamma ray detector specially for close range protective pipeline | |
| CN104833683A (en) | Novel gamma ray detection device | |
| CN202485700U (en) | Inflatable fast clamping device | |
| CN102507610B (en) | Automatic ray inspection arm for circumferential weld seam of pipe body | |
| MY201882A (en) | Leakage control system for spent fuel cooling pool | |
| CN102855950B (en) | A kind of steam generator heat-transfer pipe flaw detection apparatus and using method thereof | |
| CN206540563U (en) | A kind of support meanss detected for pressure pipeline | |
| CN201903513U (en) | Gamma ray detection device special for close-range protection pipeline | |
| CN105448367B (en) | The processing method of nuclear power station main pump abnormal leakage | |
| CN103559920A (en) | Mounting device and mounting method for checking device of connection pipe welding line of steam generator | |
| Ross-Ross et al. | Some engineering aspects of the investigation into the cracking of pressure tubes in the Pickering reactors | |
| CN2918968Y (en) | Conduit gamma-ray detecting special protecting device | |
| CN202305435U (en) | Automatic radioscopy arm for circumferential weld joint of tube body | |
| CN205027680U (en) | Circumferential weld ray detection device | |
| CN208013109U (en) | A kind of hand-held radiation protection failure detector | |
| CN207779936U (en) | A kind of pipeline girth weld non-destructive testing device | |
| CN208043564U (en) | A kind of metal containment integrality test pressure protective device | |
| CN105158281A (en) | Device and method for radio-graphically testing girth joint | |
| CN203299148U (en) | Gamma ray meter-scale flaw detection device | |
| CN203299147U (en) | Gamma ray meter-scale flaw detection device | |
| CN218726772U (en) | Shielding formula gamma ray detection device | |
| Abel et al. | Mechanical methods of improving resistance to stress corrosion cracking in BWR piping systems | |
| CN205371933U (en) | Take gas to repair gas piping device | |
| CN220895204U (en) | Radiation shielding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20180710 |